Answer:
c
Step-by-step explanation:
The first thing we are going to do for this case is to define the following variable:
x = number of trees.
We then have that the equation that represents the problem is given by:
y = 50 (x-1) + 20
Rewriting:
y = 50x - 50 + 20
y = 50x - 30
Substituting for y = 390 we have:
390 = 50x - 30
We clear x:
x = (390 + 30) / (50)
x = 8.4
nearest whole integer
x = 8
Answer:
will be planted along one block about 8 trees.
Answer:
b=16
Step-by-step explanation:
75%=75/100=3/4
3/4*b=12
b=12/1*4/3
b=16
Answer: it is A
Step-by-step explanation:
x^2+2x-48=0
x^2+8x-6x-48=0
x×(x+8)-6(x+8)=0
(x+8)×(x-6)=0
x+8=0
x-6=0
x=-8
x=6
Answer:
(a)
(b)
Step-by-step explanation:
<u>Part A</u>
Moving 4 steps left, then moving 9 steps right
When you move left, we indicate with a negative sign while a move right is indicated with a positive sign.
Moving 4 steps left = -4
Moving 9 steps right = +9
Therefore, an expression for the statement is:
<u>Part B</u>
When you lose or owe in word problems, it is usually indicated using a negative sign.
Therefore, the statement Shari lost 2 pencils can be represented with the integer: -2
Since Shari lost 2 pencils on 3 occasions, we simply have:
